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Risk of lymph node involvement and 5-year progression free survival based on depth of invasion and grade.
| Depth of invasion | Grade | Risk of LN involvement | 5-year PFS |
|---|---|---|---|
| Superficial (IA) | 1 or 2 | <3% | >95% |
| Superficial (IA) | 3 | ~10% | ~80% |
| Less than 50% (IB) | 1 or 2 | ||
| Greater than 50% (1C) | 1 or 2 | ||
| Greater than 50% (1C) | 3 | ~30% | ~50% |
| Cervical involvement (II) | any grade |
